\documentclass[10pt,english]{book}
\usepackage[english,activeacute]{babel}
\usepackage{graphicx}
\usepackage{indentfirst}
\usepackage{amsmath}
\usepackage{amsfonts}
\usepackage{amssymb}
\hoffset -0.25in
\oddsidemargin 0in
\evensidemargin 0in
\textwidth 7in
\topmargin 0in
\textheight 9.5in
\parindent 0em
\parskip 2ex
\title{{\Huge \bf #titulo}}
\author{#autor}
\date{#fecha}

\begin{document}
\maketitle
\tableofcontents

